$173+ Cheap flights from Appleton to San Diego (ATW - SAN)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/14. Fares are subject to change and may not be available on all flights or dates of travel.
ATW — SAN
Oct 10 — Oct 171
Round-trip
1 adult, Economy
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Find cheap flights from Appleton to San Diego with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Appleton to San Diego
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Best
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One-way
Cheapest flights from Appleton to San DiegoExplore the most affordable flight options available from Appleton to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
Explore the most affordable flight options available from Appleton to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/305:29 pm -
1 stop24h 29m
Wed 11/47:33 pm -
1 stop25h 11m
Deal found 9/8![Multiple Airlines logo]()
$254
This American Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/285:29 am -
1 stop9h 05m
Tue 11/37:41 am -
1 stop8h 02m
Deal found 9/9![American Airlines logo]()
$323
This American Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2911:33 am -
1 stop9h 45m
Tue 11/31:29 pm -
1 stop8h 38m
Deal found 9/5![American Airlines logo]()
$341
Best flights from Appleton to San DiegoDiscover carefully curated flight deals from Appleton to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
Discover carefully curated flight deals from Appleton to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
This United Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/239:45 am -
2 stops9h 42m
Sat 1/306:50 am -
1 stop7h 05m
Deal found 9/7![United Airlines logo]()
$348
This Delta deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/2311:10 am -
1 stop9h 17m
Thu 1/286:15 am -
1 stop8h 22m
Deal found 9/7![Delta logo]()
$361
This United Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1712:28 pm -
2 stops9h 40m
Sat 10/2410:55 am -
1 stop8h 13m
Deal found 9/5![United Airlines logo]()
$348
This United Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/146:35 am -
1 stop6h 42m
Sat 2/208:00 am -
2 stops9h 06m
Deal found 9/7![United Airlines logo]()
$366
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/611:07 am -
2 stops13h 44m
Sun 11/156:15 am -
1 stop8h 16m
Deal found 9/9![Delta logo]()
$444
This United Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/219:45 am -
2 stops9h 42m
Sun 1/242:26 pm -
1 stop6h 59m
Deal found 9/5![United Airlines logo]()
$406
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/2111:10 am -
1 stop9h 17m
Mon 1/256:55 pm -
2 stops13h 34m
Deal found 9/9![Delta logo]()
$455
This United Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/234:55 pm -
1 stop7h 45m
Thu 11/269:45 pm -
2 stops12h 30m
Deal found 9/6![United Airlines logo]()
$442
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/299:50 am -
2 stops9h 27m
Tue 11/310:20 pm -
2 stops11h 55m
Deal found 9/9![United Airlines logo]()
$451
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/48:30 am -
2 stops10h 47m
Sun 11/86:26 pm -
2 stops11h 17m
Deal found 9/9![United Airlines logo]()
$451
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/2112:32 pm -
2 stops12h 10m
Mon 1/256:50 am -
1 stop7h 05m
Deal found 9/9![United Airlines logo]()
$464
Last-minute flights from Appleton to San DiegoDiscover last-minute flight deals from Appleton to San Diego. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Appleton to San Diego. Data last updated September 10, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/285:29 am -
1 stop9h 05m
Tue 11/37:41 am -
1 stop8h 02m
Deal found 9/9![American Airlines logo]()
$323
This American Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2911:33 am -
1 stop9h 45m
Tue 11/31:29 pm -
1 stop8h 38m
Deal found 9/5![American Airlines logo]()
$341
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/305:29 pm -
1 stop24h 29m
Wed 11/47:33 pm -
1 stop25h 11m
Deal found 9/8![Multiple Airlines logo]()
$254
One-way flights from Appleton to San DiegoSearch for one-way flight options from Appleton to San Diego. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
Search for one-way flight options from Appleton to San Diego. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1410:00 am -
1 stop27h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$173
This American Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:14 pm -
1 stop7h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![American Airlines logo]()
$248
This WAYA deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/47:15 am -
1 stop7h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$252
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/248:00 am -
2 stops10h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![United Airlines logo]()
$253
This Delta deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/211:10 am -
1 stop9h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Delta logo]()
$258
This United Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1012:28 pm -
2 stops9h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![United Airlines logo]()
$263
This WAYA deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/156:30 am -
1 stop9h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$277
This American Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2311:36 am -
1 stop7h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![American Airlines logo]()
$282
This American Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/16:30 pm -
1 stop7h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![American Airlines logo]()
$298
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/306:00 am -
3 stops14h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![United Airlines logo]()
$308
Find flight deals from Appleton to San Diego
Discover tips and strategies to find the most affordable flight options for your journey from Appleton (ATW) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $254 (Kiwi.com) |
One-way from | $173 (Kiwi.com) |
Popular in | December |
Cheapest in | April |
Average price | $375 |
Cheapflights Fare Finder
Customize your flight search to find flights from Appleton to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 10, 2026.
Use the filters below to find and compare flights from Appleton to San Diego that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
AppletonSan Diego
ATW Appleton Intl - SAN San Diego
ATWSAN
Appleton Intl
Mon 12/14
10:00 am-2:49 pm
2 stops30h 49m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$181
AppletonSan Diego
ATW Appleton Intl - SAN San Diego
ATWSAN
Appleton Intl
Sun 1/24
11:10 am-6:27 pm
1 stop9h 17m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$248
AppletonSan Diego
ATW Appleton Intl - SAN San Diego
ATWSAN
Appleton Intl
Sat 10/10
6:14 pm-11:19 pm
1 stop7h 05m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$248
AppletonSan Diego
ATW Appleton Intl - SAN San Diego
ATWSAN
Appleton Intl
Sun 1/24
8:00 am-4:09 pm
2 stops10h 09m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$253
AppletonSan Diego
ATW Appleton Intl - SAN San Diego
ATWSAN
Appleton Intl
Sat 2/6
11:10 am-6:27 pm
1 stop9h 17m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$258
AppletonSan Diego
ATW Appleton Intl - SAN San Diego
ATWSAN
Appleton Intl
Sat 10/10
12:28 pm-8:08 pm
2 stops9h 40m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$263
Quickest round-trip
AppletonSan Diego
ATW Appleton Intl - SAN San Diego
ATWSAN
Appleton Intl
Thu 9/24
6:31 pm-11:25 pm
1 stop6h 54m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$282
AppletonSan Diego
ATW Appleton Intl - SAN San Diego
ATWSAN
Appleton Intl
Sat 1/30
6:00 am-6:35 pm
3 stops14h 35m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$308
AppletonSan Diego
ATW Appleton Intl - SAN San Diego
ATWSAN
Appleton Intl
Fri 12/25
6:25 pm-11:36 pm
1 stop7h 11m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$310
AppletonSan Diego
ATW Appleton Intl - SAN San Diego
ATWSAN
Appleton Intl
Sat 2/6
12:32 pm-10:42 pm
2 stops12h 10m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$313
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Appleton to San Diego
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Appleton to San Diego in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Appleton-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Appleton-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Appleton-San Diego flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Appleton-San Diego flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Appleton-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Appleton to San Diego
Have a flexible travel schedule? Discover the best time to fly to San Diego from Appleton with our price prediction graph.
ATW-SAN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Appleton to San Diego
How far ahead should I book a flight from Appleton to San Diego?
Booking 50 days in advance of your planned departure date is, on average, the best time to get cheap flights from Appleton to San Diego. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Appleton to San Diego?
Currently, April is the cheapest month in which you can book a flight from Appleton to San Diego (average of $348). Flying from Appleton to San Diego in December is currently the most expensive (average of $678). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Appleton to San Diego?
Airfare is below average for this route at the moment.
Appleton to San Diego flights typically cost between $335 and $456 in October.The cheapest round-trip price found within the last 5 days was $254 on Multiple Airlines (Oct 30-Nov 4).
Reviews of airlines servicing San Diego
Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated September 10, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andAmerican Airlines from Appleton to San Diego to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Comfort
7.8
Overall
7.8
Entertainment
7.8
Food
7.2
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Crew
8.5
Comfort
7.8
Overall
7.8
Entertainment
7.8
Food
7.2
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Crew
8.5
Comfort
7.8
Overall
7.8
Entertainment
7.8
Food
7.2
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Crew
8.5
Comfort
7.8
Overall
7.8
Entertainment
7.8
Food
7.2
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Related info for your journey
Find useful and relevant information for your journey from Appleton to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San Diego?
Book flights to San Diego if you plan to visit one of these locationsEl Cajon
National City
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Coronado
Poway
San Ysidro
La Mesa
Santee
Julian
Lemon Grove
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Appleton and San Diego flights
Browse other Appleton and San Diego flight options. Last updated on September 10, 2026.
Other flights from Appleton
Browse through other flights departing from Appleton. Flights are based on user searches made on Cheapflights and were last updated on September 10, 2026.
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Explore flights to San Diego departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 10, 2026.
Top 3 airlines flying from Appleton to San Diego
Discover the top 3 airlines that operate flights from Appleton to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$288 | Average$402 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$288 | Average$394 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$330 | Average$428 | FlexibilityNo cancel fee | On-time71% |